CN202922214U - Floating support for ball screw - Google Patents
Floating support for ball screw Download PDFInfo
- Publication number
- CN202922214U CN202922214U CN 201220243768 CN201220243768U CN202922214U CN 202922214 U CN202922214 U CN 202922214U CN 201220243768 CN201220243768 CN 201220243768 CN 201220243768 U CN201220243768 U CN 201220243768U CN 202922214 U CN202922214 U CN 202922214U
- Authority
- CN
- China
- Prior art keywords
- guide rod
- cylinder body
- screw
- ball
- ball screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a floating support for a ball screw. The problem that the deflection of the screw exceeds an allowable vale of the screw because of self weight of an overlong ball screw, and accuracy of equipment is affected is avoided. The floating support for the ball screw comprises a cylinder body and a guide rod arranged in the cylinder body. Two straight-line bearings are arranged on the guide rod in the cylinder body. A compressed spring is arranged between the two straight-line bearings. A gasket which pushes the guide rod to move is arranged at one end of the compressed spring. One end of the guide rod extends out of the cylinder body. A shaft is arranged on the guide rod portion which extends out of the cylinder body along the radial direction. A V-shaped support block is arranged at the top end of the guide rod portion which extends out of the cylinder body. A support body is fixed at one end of the guide rod portion which extends out of the cylinder body, and a straight-line bearing seat which fixes the straight-line bearings is connected with the other end of the guide rod portion which extends out of the cylinder body. The straight-line bearing seat is fixedly provided with a guide key seat. A guide key is arranged in the guide key seat. Compared with the prior art, the floating support for the ball screw has the advantages of being simple in structure, flexible and reliable in movement and convenient to maintain, stability of operation of a ball screw pair is improved, and influence on equipment accuracy on the using condition without supporting is avoided.
Description
Technical field
The utility model belongs to mechanical transmissioning technology field, particularly a kind of floating bracket for ball-screw.
Background technology
Along with to demand large-scale, efficient, accurate high-grade numerical control device, the ball-screw of long size obtains a large amount of utilizations in equipment.Because of the increase of device travel, the strong point span at ball-screw two ends is large, and the leading screw that level is installed can produce amount of deflection because of deadweight, cause driving error, the nut condition of work is worsened, and direct decision device rigidity, operation stability and precision are therefore should arrange some floating brackets between two end supports point.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of and prevent that long ball-screw from exceeding the permissible value of leading screw because deadweight causes the amount of deflection of leading screw, affects the floating bracket that is used for ball-screw of the precision of equipment.
the purpose of this utility model is achieved in that a kind of floating bracket for ball-screw, comprise cylinder body, be arranged on the guide rod in cylinder body, it is characterized in that: in described cylinder body, be provided with two linear bearings on guide rod, be provided with Compress Spring between two linear bearings, one end of Compress Spring is provided with the packing ring that promotes the guide rod motion, described guide rod one distal process goes out outside cylinder body, radially be provided with axle on guide rod outside outstanding cylinder body, the outer guide rod top of outstanding cylinder body is provided with the V-type back-up block, one end of the outstanding guide rod of described cylinder body is fixed with pallet body by screw, the other end is connected by screw the fixedly linear axis bearing of linear bearing, the linear axis bearing is fixed with the guiding keyseat by screw, be provided with feather key in the guiding keyseat.
Be provided with adjusting pad between described pallet body and linear bearing.
The porose back-up ring of using is set between described linear bearing and packing ring.
Be provided with on described axle and the interactional radial ball bearing of ball-screw pressing plate.
Be provided with adjusting pad between described linear bearing and guiding keyseat.
Be provided with sealing ring on described pallet body.
The utility model technology compared to the prior art, have advantages of simple in structure, flexible movements are reliable, easy to maintenance, improve the stability of ball screw assembly, operation, overcome without the impact on equipment precision of supporting under the use state.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is work schematic diagram of the present utility model.
The specific embodiment
embodiment 1: as Fig. 1, shown in 2, a kind of floating bracket for ball-screw, comprise cylinder body 12, be arranged on the guide rod 3 in cylinder body 12, in cylinder body 12, be provided with two linear bearings 2 on guide rod 3, be provided with Compress Spring 11 between two linear bearings 2, one end of Compress Spring 11 is provided with the packing ring 10 that promotes guide rod 3 motions, described guide rod 3 one distal process go out outside cylinder body 12, radially be provided with axle 15 on guide rod 3 outside outstanding cylinder body 12, outer guide rod 3 tops of outstanding cylinder body 12 are provided with V-type back-up block 5, one end of described cylinder body 12 outstanding guide rods 3 is fixed with pallet body 7 by screw, the other end is connected by screw the fixedly linear axis bearing 13 of linear bearing 2, linear axis bearing 13 is fixed with guiding keyseat 14 by screw, be provided with feather key 4 in guiding keyseat 14, be provided with adjusting pad 8 between described pallet body 7 and linear bearing 2, arrange porose with back-up ring 9 between described linear bearing 2 and packing ring 10, be provided with on described axle 15 and the interactional radial ball bearing 6 of ball-screw pressing plate 16, be provided with adjusting pad 8 between described linear bearing 2 and guiding keyseat 14, be provided with sealing ring 1 on described pallet body 7.
the specific embodiment according to embodiment 1: pallet body 7 is arranged on fixedly on body by screw, link together with cylinder body simultaneously, installing hole is with the fixing position of linear bearing 2 of back-up ring 9 in cylinder body, the other end at cylinder body is installed linear axis bearing 13, Compress Spring 11 is installed between two linear bearings, linear axis bearing 13 is connected by screw with guiding keyseat 14, in the end of guide rod 3, an axle 15 is installed radially, radial ball bearing 6 is installed at two ends at axle 15, pressing plate 16 is fixed by screws on the moving component that feed screw nut drags, V-type back-up block 5 use alignment pins are fixed on the end of guide rod 3, guide rod 3 is arranged in cylinder body 12, led up and down by two linear bearings 2, feather key 4 leads diametrically simultaneously, under Compress Spring 11 effects, promoting guide rod by packing ring 10 moves, make V-type back-up block 5 support leading screw surperficial, during the position of the moving component that drags when ball-screw nut by floating bracket, pressing plate 16 fixed thereon is depressed radial ball bearing 6, radial ball bearing 6 rolls along the inclined-plane of pressing plate, drive simultaneously guide rod 3 motions, it is surperficial that V-type back-up block 5 breaks away from leading screw, when pressing plate leaves bracket locations, V-type back-up block 5 returns to holding state under the effect of Compress Spring 11.
Claims (6)
1. floating bracket that is used for ball-screw, comprise cylinder body, be arranged on the guide rod in cylinder body, it is characterized in that: in described cylinder body, be provided with two linear bearings on guide rod, be provided with Compress Spring between two linear bearings, one end of Compress Spring is provided with the packing ring that promotes the guide rod motion, described guide rod one distal process goes out outside cylinder body, radially be provided with axle on guide rod outside outstanding cylinder body, the outer guide rod top of outstanding cylinder body is provided with the V-type back-up block, one end of the outstanding guide rod of described cylinder body is fixed with pallet body by screw, the other end is connected by screw the fixedly linear axis bearing of linear bearing, the linear axis bearing is fixed with the guiding keyseat by screw, be provided with feather key in the guiding keyseat.
2. the floating bracket for ball-screw according to claim 1, is characterized in that: be provided with adjusting pad between described pallet body and linear bearing.
3. the floating bracket for ball-screw according to claim 1, is characterized in that: the porose back-up ring of using is set between described linear bearing and packing ring.
4. the floating bracket for ball-screw according to claim 1, is characterized in that: be provided with on described axle and the interactional radial ball bearing of ball-screw pressing plate.
5. the floating bracket for ball-screw according to claim 1, is characterized in that: be provided with adjusting pad between described linear bearing and guiding keyseat.
6. the floating bracket for ball-screw according to claim 1, is characterized in that: be provided with sealing ring on described pallet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243768 CN202922214U (en) | 2012-05-29 | 2012-05-29 | Floating support for ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243768 CN202922214U (en) | 2012-05-29 | 2012-05-29 | Floating support for ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202922214U true CN202922214U (en) | 2013-05-08 |
Family
ID=48212207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243768 Expired - Fee Related CN202922214U (en) | 2012-05-29 | 2012-05-29 | Floating support for ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202922214U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411823A (en) * | 2013-07-31 | 2013-11-27 | 济南科汇试验设备有限公司 | Lead screw guiding device |
| CN103551902A (en) * | 2013-08-23 | 2014-02-05 | 福鼎市金雄机车部件有限公司 | Device for automatically controlling linear movement and accurate stop position of sliding table by motor |
| CN103692281A (en) * | 2013-12-26 | 2014-04-02 | 江西中船航海仪器有限公司 | Lead screw transmission stabilizing support device |
| WO2022068179A1 (en) * | 2020-09-29 | 2022-04-07 | 深圳市中图仪器股份有限公司 | Flexible connection structure of lead screw and flash measuring instrument stage |
-
2012
- 2012-05-29 CN CN 201220243768 patent/CN202922214U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411823A (en) * | 2013-07-31 | 2013-11-27 | 济南科汇试验设备有限公司 | Lead screw guiding device |
| CN103551902A (en) * | 2013-08-23 | 2014-02-05 | 福鼎市金雄机车部件有限公司 | Device for automatically controlling linear movement and accurate stop position of sliding table by motor |
| CN103551902B (en) * | 2013-08-23 | 2015-12-02 | 福鼎市金雄机车部件有限公司 | Motor is utilized automatically to control the device of slide unit rectilinear motion and accurate stop position |
| CN103692281A (en) * | 2013-12-26 | 2014-04-02 | 江西中船航海仪器有限公司 | Lead screw transmission stabilizing support device |
| CN103692281B (en) * | 2013-12-26 | 2016-08-17 | 江西中船航海仪器有限公司 | A kind of screw rod transmission stable support device |
| WO2022068179A1 (en) * | 2020-09-29 | 2022-04-07 | 深圳市中图仪器股份有限公司 | Flexible connection structure of lead screw and flash measuring instrument stage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20180529 |